/*
 +-----------------------------------------------------------------------------------------------+
 | Project : UKAPI
 +-----------------------------------------------------------------------------------------------+
 | Project Description : Universal & Kernel API
 +-----------------------------------------------------------------------------------------------+
 | File Description :
 |   Task
 |                                                 
 +-----------------------------------------------------------------------------------------------+
 | Licence : MIT Licence
 +-----------------------------------------------------------------------------------------------+
 | Copyright (c) 2006 Olivier Vanhoucke
 | 
 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
 | and associated documentation files (the "Software"), to deal in the Software without 
 | restriction, including without limitation the rights to use, copy, modify, merge, publish, 
 | distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the 
 | Software is furnished to do so, subject to the following conditions:
 | 
 | The above copyright notice and this permission notice shall be included in all copies or 
 | substantial portions of the Software.
 | 
 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
 | BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
 | DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 +-----------------------------------------------------------------------------------------------+
*/

#include <ukapi.h>
ptask_t task_current()
{
	#if defined( API_SUBLAYER_WIN32 ) || defined( API_SUBLAYER_POSIX )
	{
		plist_node_t	le_task = null;
		ptask_manager_t tm		= &global_kernel().task_manager;

		if ( tm == null )
		{
			return null;
		}

		for ( 
			le_task = list_head( &tm->scheduler.list ); 
			le_task != null; 
			le_task = list_next( le_task ) 
			)
		{
			ptask_t ptask;

			if ( ( le_task == null ) || ( le_task->data == null ) )
			{
				continue;
			}

			ptask = (ptask_t) le_task->data;

			if ( GetCurrentThreadId() == ptask->task_id )
			{
				return ptask;
			}
		}

		return null;
	}
	#endif /* API_SUBLAYER_WIN32 || API_SUBLAYER_POSIX */

	return global_kernel().task_manager.current_task;
}
